package com.jerry.waimai.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.jerry.waimai.common.R;
import com.jerry.waimai.dto.DishDto;
import com.jerry.waimai.entity.Category;
import com.jerry.waimai.entity.Dish;

import com.jerry.waimai.entity.DishFlavor;
import com.jerry.waimai.service.CategoryService;
import com.jerry.waimai.service.DishFlavorService;
import com.jerry.waimai.service.DishService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;

/**
 * 菜品管理
 */
@RestController
@RequestMapping("/dish")
@Slf4j
public class DishController {
    @Autowired
    private DishService dishService;

    @Autowired
    private DishFlavorService dishFlavorService;

    @Autowired
    private CategoryService categoryService;

    /**
     * 新增菜品
     * @param dishDto
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody DishDto dishDto){
        log.info(dishDto.toString());

        dishService.saveWithFlavor(dishDto);

        return R.success("新增菜品成功。");
    }

    /**
     * 菜品信息分页查询
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name){
        //构造分页构造器对象
        Page<Dish> pageInfo = new Page<>(page, pageSize);
        Page<DishDto> dishDtoPage = new Page<>();

        //构造条件构造器
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        //添加过滤条件
        queryWrapper.like(name!=null, Dish::getName, name);
        //添加排序条件
        queryWrapper.orderByDesc(Dish::getUpdateTime);

        dishService.page(pageInfo, queryWrapper);

        //对象拷贝
        BeanUtils.copyProperties(pageInfo, dishDtoPage, "records");

        List<Dish> records = pageInfo.getRecords();

        List<DishDto> list  = records.stream().map((item) -> {
            DishDto dishDto = new DishDto();
            BeanUtils.copyProperties(item, dishDto);
            Long categoryId = item.getCategoryId();//分类id
            //根据id查询分类对象
            Category category = categoryService.getById(categoryId);

            if(category != null){
                String categoryName = category.getName();
                dishDto.setCategoryName(categoryName);
            }

            return dishDto;
        }).collect(Collectors.toList());

        dishDtoPage.setRecords(list);
        return R.success(dishDtoPage);
    }

    /**
     * 根据id查询菜品信息
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<DishDto> getById(@PathVariable Long id){
        DishDto dishDto = dishService.getByIdWithFlavor(id);
        return R.success(dishDto);
    }

    /**
     * 修改菜品
     * @return
     */
    @PutMapping
    public R<String> update(@RequestBody DishDto dishDto){

        dishService.updateWithFlavor(dishDto);

        return R.success("菜品修改成功");
    }

    /**
     * 删除菜品
     * @param ids
     * @return
     */
    @DeleteMapping
    public R<String> delete(String ids){
        String[] split = ids.split(",");
        List<Long> list = Arrays.stream(split).map(item -> Long.parseLong(item.trim())).collect(Collectors.toList());

        dishService.removeFlavorById(list);
        return R.success("菜品删除成功");
    }

    /**
     * 批量启售/停售
     * @param ids
     * @return
     */
    @PostMapping("/status/{status}")
    public R<String> status(@PathVariable int status, String ids){
        String[] split = ids.split(",");
        List<Long> list = Arrays.stream(split).map(item -> Long.parseLong(item.trim())).collect(Collectors.toList());
        List<Dish> dishes = list.stream().map( item -> {
            Dish dish = new Dish();
            dish.setId(item);
            dish.setStatus(status);
            return dish;
        }).collect(Collectors.toList());
        dishService.updateBatchById(dishes);
        return R.success("操作成功");
    }

    /**
     * 根据条件查询对应的菜品数据
     * @param dish
     * @return
     */
    @GetMapping("/list")
    public R<List<DishDto>> list(Dish dish){
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(dish.getCategoryId()!=null, Dish::getCategoryId, dish.getCategoryId());
        //查询条件为1，启售菜品
        queryWrapper.eq(Dish::getStatus, 1);
        //添加排序条件
        queryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);
        List<Dish> list = dishService.list(queryWrapper);

        List<DishDto> dishDtoList = list.stream().map((item) -> {
            DishDto dishDto1 = new DishDto();

            BeanUtils.copyProperties(item, dishDto1);
            Long categoryId = item.getCategoryId();

            Category category = categoryService.getById(categoryId);
            if (category != null){
                String categoryName = category.getName();
                dishDto1.setCategoryName(categoryName);
            }
            Long id = item.getId();//当前菜品id
            LambdaQueryWrapper<DishFlavor> queryWrapper1 = new LambdaQueryWrapper<>();
            queryWrapper1.eq(DishFlavor::getDishId, id);

            List<DishFlavor> dishFlavorList = dishFlavorService.list(queryWrapper1);
            dishDto1.setFlavors(dishFlavorList);
            return dishDto1;
        }).collect(Collectors.toList());

        return R.success(dishDtoList);
    }

}
